ER
Earl Roberts — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Davis-County, Iowa
Our Model Tree links this Earl Roberts across the 1930 and 1940 US Censuses in Davis-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Davis-County, Iowa |
| Surname | Roberts |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Salt Creek Township |
| 1935 Residence (County) | Davis County |
| Additional Details | |
| Occupation | Farm Labor |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farm Laborer |
| Township / Ward | Salt Creek Township |
| Est. Birth Year | ~1923 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| Marvin Roberts | Son | — | 14 | ~1926 |
| Johnie Roberts | Son | — | 11 | ~1929 |
| Alvia Roberts | Son | — | 20 | ~1920 |
| Lucie Roberts | Head | — | 51 | ~1889 |
| Alice Roberts | Daughter | — | 10 | ~1930 |
| Erma Roberts | Daughter | — | 16 | ~1924 |
| Earl Roberts | Son | — | 17 | ~1923 |
| Clara Roberts | Spouse | — | 51 | ~1889 |
Census Appearances
1930
Davis, Iowa
Son, age 7
Davis, Iowa · implied b. ~1923 — 32 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Earl S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Davis-County, Iowa
Son, age 17
Davis-County, Iowa · implied b. ~1923 — 8 household members
| Surname | Roberts |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Salt Creek Township |
| 1935 Residence (County) | Davis County |
| Occupation | Farm Labor |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 1 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Earl Roberts across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Earl Roberts
Son · 1940 · age 17 · b. ~1923 · Iowa
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Sibling
Alice Roberts
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marvin Roberts
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Johnie Roberts
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Erma Roberts
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvia Roberts
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Davis-County, Iowa
Open full size
1940 US Federal Census — Davis-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01154-00255)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Fenity | 57 | Head | Farmer | Iowa |
| 2 | Elizabeth Fenity | 60 | Wife | — | Iowa |
| 3 | Alis Gideon | 72 | Head | Farmer | Iowa |
| 4 | Lettie Gideon | 69 | Wife | — | Iowa |
| 5 | Orest Hemm | 28 | Head | Farmer | Iowa |
| 6 | Ruth Hemm | 23 | Wife | Housewife | Iowa |
| 7 | Riley Martin | 50 | Hired hand | Farm Labor | Iowa |
| 8 | Elizabeth Brooks | 22 | Head | Farmer | Iowa |
| 9 | Helen Brooks | 21 | Wife | Housewife | Iowa |
| 10 | Irene Brooks | 0 | Daughter | — | Iowa |
| 11 | Gertrude Brooks | 50 | Mother | House | Iowa |
| 12 | Erva Brooks | 11 | Sister | — | Iowa |
| 13 | Royal Vissern | 40 | Head | Farmer | Iowa |
| 14 | Etta Vissern | 44 | Wife | Housewife | Iowa |
| 15 | Ed Thompson | 54 | Head | Farmer | Iowa |
| 16 | Mary Thompson | 54 | Wife | Housewife | Iowa |
| 17 | Dode Rodgers | 70 | Head | Farmer | Iowa |
| 18 | Nora Rodgers | 49 | Wife | Housewife | Iowa |
| 19 | Lucie Roberts | 51 | Head | — | Iowa |
| 20 | Clara Roberts | 51 | Wife | Housewife | Iowa |
| 21 | Alvia Roberts | 20 | Son | Farm Labor | Iowa |
| 22 | Earl Roberts THIS PERSON | 17 | Son | Farm Labor | Iowa |
| 23 | Erma Roberts | 16 | Daughter | — | Iowa |
| 24 | Marvin Roberts | 14 | Son | Farm Labor | Iowa |
| 25 | Johnie Roberts | 11 | Son | — | Iowa |
| 26 | Alice Roberts | 10 | Daughter | — | Iowa |
| 27 | Guy Haney | 46 | Head | — | Iowa |
| 28 | Mabel Haney | 37 | Wife | — | Iowa |
| 29 | Fay Haney | 13 | Daughter | — | Iowa |
| 30 | Iris Haney | 10 | Daughter | — | Iowa |
| 31 | Rex Haney | 8 | Son | — | Iowa |
| 32 | Charles Haney | 6 | Son | — | Iowa |
| 33 | Darley Archer | 29 | Head | Farmer | Iowa |
| 34 | Mae Archer | 27 | Wife | Housewife | Iowa |
| 35 | Herschel Proster | 34 | Head | Farmer | Iowa |
| 36 | Helen Proster | 32 | Wife | Housewife | Iowa |
| 37 | Marvin Proster | 6 | Son | — | Iowa |
| 38 | Benney Proster | 5 | Son | — | Iowa |
| 39 | Dayton Moughler | 59 | Head | Farmer | Iowa |
| 40 | Lacey Moughler | 58 | Wife | — | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)